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Astrology · Reference · Ephemeris

Daily ephemeris — September 2012

Planet positions for every day of the month, sampled at noon UT. Computed live from VSOP87D + ELP2000 ephemerides. Navigate any month forward or back; data is consistent with the free Birth Chart and Sky Map tools.

Day☉ Sun☽ Moon☿ Mer♀ Ven♂ Mar♃ Jup♄ Sat♅ Ura♆ Nep♇ Plu
1 9Vi20Pi 0Vi24Cn 5Sc14Ge26Li 7Ar℞ 1Pi℞ 7Cp℞
210Vi 3Ar 2Vi25Cn 6Sc14Ge26Li 7Ar℞ 1Pi℞ 7Cp℞
311Vi15Ar 4Vi26Cn 7Sc14Ge26Li 7Ar℞ 1Pi℞ 7Cp℞
412Vi28Ar 6Vi27Cn 7Sc14Ge26Li 7Ar℞ 1Pi℞ 6Cp℞
513Vi10Ta 8Vi28Cn 8Sc15Ge26Li 7Ar℞ 1Pi℞ 6Cp℞
614Vi22Ta10Vi29Cn 9Sc15Ge26Li 7Ar℞ 1Pi℞ 6Cp℞
715Vi 3Ge12Vi 0Le 9Sc15Ge26Li 7Ar℞ 1Pi℞ 6Cp℞
816Vi15Ge14Vi 2Le10Sc15Ge26Li 7Ar℞ 1Pi℞ 6Cp℞
917Vi27Ge16Vi 3Le11Sc15Ge27Li 7Ar℞ 1Pi℞ 6Cp℞
1018Vi 9Cn18Vi 4Le11Sc15Ge27Li 7Ar℞ 1Pi℞ 6Cp℞
1119Vi22Cn20Vi 5Le12Sc15Ge27Li 7Ar℞ 1Pi℞ 6Cp℞
1220Vi 4Le21Vi 6Le13Sc15Ge27Li 7Ar℞ 1Pi℞ 6Cp℞
1321Vi17Le23Vi 7Le13Sc15Ge27Li 7Ar℞ 1Pi℞ 6Cp℞
1422Vi 1Vi25Vi 8Le14Sc15Ge27Li 7Ar℞ 1Pi℞ 6Cp℞
1523Vi15Vi27Vi 9Le15Sc15Ge27Li 7Ar℞ 1Pi℞ 6Cp℞
1624Vi29Vi29Vi10Le15Sc15Ge27Li 7Ar℞ 1Pi℞ 6Cp℞
1724Vi13Li 0Li11Le16Sc15Ge27Li 7Ar℞ 1Pi℞ 6Cp℞
1825Vi28Li 2Li13Le17Sc15Ge28Li 6Ar℞ 1Pi℞ 6Cp
1926Vi12Sc 4Li14Le17Sc16Ge28Li 6Ar℞ 1Pi℞ 6Cp
2027Vi27Sc 6Li15Le18Sc16Ge28Li 6Ar℞ 1Pi℞ 6Cp
2128Vi11Sg 7Li16Le19Sc16Ge28Li 6Ar℞ 1Pi℞ 6Cp
2229Vi25Sg 9Li17Le19Sc16Ge28Li 6Ar℞ 0Pi℞ 6Cp
23 0Li 9Cp11Li18Le20Sc16Ge28Li 6Ar℞ 0Pi℞ 6Cp
24 1Li23Cp12Li19Le21Sc16Ge28Li 6Ar℞ 0Pi℞ 6Cp
25 2Li 7Aq14Li21Le21Sc16Ge28Li 6Ar℞ 0Pi℞ 6Cp
26 3Li20Aq16Li22Le22Sc16Ge28Li 6Ar℞ 0Pi℞ 6Cp
27 4Li 3Pi17Li23Le23Sc16Ge29Li 6Ar℞ 0Pi℞ 6Cp
28 5Li16Pi19Li24Le23Sc16Ge29Li 6Ar℞ 0Pi℞ 6Cp
29 6Li29Pi20Li25Le24Sc16Ge29Li 6Ar℞ 0Pi℞ 6Cp
30 7Li11Ar22Li26Le25Sc16Ge29Li 6Ar℞ 0Pi℞ 6Cp

Reading the table

  • Format: degree + sign abbreviation. 15Le = 15° Leo.
  • ℞ = retrograde — the planet appears to move backwards through the zodiac that day.
  • highlighted = station day, the moment a planet stops and reverses direction (or vice versa). The most-watched single days in any month.

Common questions

About the ephemeris

What is an ephemeris?

A table of planetary positions over time. The classical paper ephemeris (Raphael's, Rosicrucian, Swiss Ephemeris) lists each planet's longitude on each day of the year — the working tool astrologers use to plan elections, time transits, and check past or future configurations. This page reproduces that data live from arcsecond-grade ephemerides.

Why noon UT?

The classical convention. The slow planets (Jupiter through Pluto) barely move in 12 hours, so noon-sampling captures their position for the whole day with negligible error. The Moon moves ~6.5° in 12 hours (about a quarter of a sign), so the Moon column is most accurate at noon UT specifically — for an exact Moon position at any moment in your local time, use the Sky Map tool.

How do I read each cell?

Each cell shows the planet's degree-in-sign and the sign abbreviation. "15Le" = 15° Leo. The ℞ marker means retrograde — the planet appears to move backwards through the zodiac on that day. Sign-changes (ingresses) appear as a transition between two adjacent cells; the exact ingress moment is in our Sky Now or Lunar Calendar pages.

Why are some cells highlighted?

We highlight the day each planet first appears retrograde or first turns direct in the displayed month — the stations. These are the most-watched days in any month: a planet's station is when it's stopped relative to the stars, and astrologers read the station as a focused activation of the planet's themes for the week or two surrounding it.

How accurate is this?

Arcsecond. We use VSOP87D for the planets and a truncated ELP2000 lunar model with deltaT correction. Same engine that computes the free Birth Chart, Sky Map, and Transit Forecast. Time-zone is UT (universal time); convert to your local time-zone if you need a same-day local read.

Can I use this to plan elections?

Yes — the daily ephemeris is the working table for Hellenistic and modern Western election work. Pair with the Muhurta tool (Vedic auspicious-time scoring), the Choghadiya page (Vedic time windows), and the Lunar Calendar (Moon phases + sign-ingresses) for a full election workflow.

Computation

Each cell is a live engine call cached for 24 hours: VSOP87D for Mercury–Neptune, an in-house DOPRI8 8(7) integrator for Pluto, and a truncated ELP2000 lunar model with deltaT correction for the Moon. Sub-arcsecond accurate. Sampled at 12:00 UT. Retrograde flags come from the engine’s direction-of-motion check, not a calendar approximation; station days are detected from adjacent-day flag flips.